Scarifying machine



Aug. 5 1924. 1,503,872

. J. D. BENBOW SCARIFYING MACHINE Filed Sept. 19. 1921 2 Sheets-Sheet} l 0 .2: R 2/ L Km mw ww $0? am it;

I m MN FWMWQ Aug. 5 1924.

J. D. BENBOW SCARIFYING MACHINE Filed Sept. 19. 1921 2 Sheets-Sheet 2 UNITEDSTATES JAMES J). BENBOW, or emcee, ntima e.

oolvxranr, or ane one, memoir, ooierom rra Application file- 1 Beptemh or To all whom it may concern,

Be it known that. I, JAMns D; Brnsnow, a. citizen of the United States. and a resident of Aurora, 111 the county of Kane and Eltate of Illinois, have invented cor-tam new and useful Improvements 1n Scarrfymg Machines, of which therfollowmg is a specification, reference being had to the accom panying drawings.

My invention relates to road making machinery, and has particularly to do with machines for scarifyingor cuttinoup the road surface. It has for its object to provide improved means for lifting the frame which carries the scarifyingte eth so that when raised such frame will be maintained in a substantially horizontal position. and also to provide means bywhich the operation of lifting the scarifier frame will be made easier. I accomplish my object as illustrated in the drawings and as hereinafter described. What I regard as new is forth in the claims. H 1 i In the accompanying drawings,"

Fig. 1 is a sideelevation of a scarifying machine embodying my improvements, some parts being broken away; i i

Fig. 2 is a partial longitudinal sectional. View on line 2-2 of Fig. 3; r

Fig. 3 is a plan View of the scarifier frame and the draft attachments. therefor. some parts being in section, the View being taken substantially along the line 3--3 of Fig. 1;

Fig. 4 is a cross section on line 44.- of Fig. 1; and

Fig. 5 is a partial cross section on line 5-5 of Fig. 1.

Referring to the drawings.6 indicates 40 the main frame of the machine as a Whole. Wlllnl'l lfi PJT'TlDFl l'lV 'Frnnf wlwnnlc '7 n-nrl Man-v l PATENT OFFICE.

AWEIGNUH Til "l lll ill p il illfillllitll,li llilllilt 1:}. limit. Eerie]. No. filillfliP-m scnrifier frame provided with two rig cl draft bars and M;1 the rear end glmrt me of which are fixedly secured thereto at on posite end portions of said frame. li uid draft bars extend forward and converge their forward ends being nounmzted by a cross plate 15. thus forming" a rigid l shaiml draft frame. This draft frame is mimimrtcd with the usual hint; bolt '1 ll wl'lirh is fitted in the front axle tframr El lily Tilllltflhh of draft bars 1i". 1 which are r rrc'horat their to u 1.. a goose nook 1i) Whi 1. 1m king bolt 16. as how. i a rear portions or draft :lorimrd end nertions of th are pirotally connect 1 tl 21 that fill:

ote 20. 21. a r

corner; or r the upper end of inrerlml V-sha1 upon and rising l'rrytnn the of the main i'rrnrlo (1. Wide lift the forwzzrd rml o! Hm rarilirr draft Frame. but inns-numb es the r :iriiior teeth are located heel: of the pivots 20. 21. when the machine is in use the resistance due to the engagement of such teeth with the ground tends to swing the forward endof the scarifier frame down. to its operative position, Where it is locked by a latch hereinafter described. For preventing downward movement of the forward end of the scarifier frame beyond its proper operative position, the draft bars 17, 18 are provided with a Web 24. which underlies the forward .....J.. ,..C 4.1.... 'Lnufl 10 1A 1 Fill [ends to 

